701Views37Replies

Author Options:

wtf??!! Answered

I just visited some air gun dealers site and i learned that they sell air rifles that can go up to 3000psi! I am making an air rifle that i was gonna pump with a air compressor up to 300psi. :( I thaught that 300psi was much!! Wtf?? I mean 300psi is enough to go trough 18mm plywood. Whats 3000psi gonna do??!! Go through a wall?!! Wtf? :( But is there a way for me to pump to a higher psi?? And a other thing. My air tank was this ABS pipe and i was wondering if you could get ABS pipe out of iron. Can you?? PS: I still havent learned how much fps a 300psi is.

38 Replies

user
Tool Using Animal (author)2008-03-11

Rather an old thread, but when you get sick of shooting batteries out of PVC, you can go buy a "pellet gun" that will shoot through as many sheets of plywood as you care to stack.

quackenbush

Shinsun

Select as Best AnswerUndo Best Answer

user
acer73 (author)2007-08-25

I don't know how strong ABS is but PVC has a breaking point of 200psi. If the tank explodes you will be filled with plastic shrapnel and some hearing damage. Get some wide thick steel pipe and cap both ends. Much stronger but there is a chance of killing you if it explodes which isn't likely as long as its not filled that great of a pressure. 300psi isn't much, Daisy pellet riffles go to around 600 and I have a spring loaded one that has 1000.

Select as Best AnswerUndo Best Answer

user
TETRANITRATE#2 (author)acer732008-03-11

not all pvc has a breaking point of 200 psi. i use a barrel for my hybrid that is sch160(600 psi) but that is for water. that same pvc with compressed air will break at around 300-400 psi. also your spring loaded gun does not go to any psi because it uses a spring not a tank to compress a piston forcing the pellet out.

Select as Best AnswerUndo Best Answer

user
Enzo55 (author)acer732007-08-27

Yeah but your air rifle shoots bb bullets. Not quite the same. I´m shooting AA Batteries and marbles at 300psi. Compare a little bb to a marble. But tell me does your spring loaded rifle shoot through 18mm plywood?

Select as Best AnswerUndo Best Answer

user
acer73 (author)Enzo552007-08-27

No my PELLET rifle shoots pellets which are much more powerful, I have not tried to shoot through plywood, I can tell you that It can go through a pidgin though. I would Not shoot AA batterys they are heavy and it they hit someone they will end up with a very bad bruise at the very least and a broken rib. You can not compare a Pellet to a battery but im sorry to say that a pellet wont go through plywood; a AA battery wouldn't go through it ether, it would only break it in a few places.

Select as Best AnswerUndo Best Answer

user
ll.13 (author)acer732007-08-28

Our Webley xocet air rifle can get a rabbit at 40 yds. in fact lets say 20+ rabbits, I have also hit a pheasant at 60 yards but it only slightly injured it. now there is no way you can get the same performance with a bigger projectile, a .303 is big enough size for deer, so it'd be better to get an old air gun and rig up the barrel.

Select as Best AnswerUndo Best Answer

user
acer73 (author)ll.132007-08-30

why would you hunt a rabbit with a air rifle esspecially a pheasant. An AA battery would be like a large bullet, you just need a large barrel and tank to have it fly fast enough to take out a dear.

Select as Best AnswerUndo Best Answer

user
Enzo55 (author)Enzo552007-08-28

" A pellet wont go through plywood" I think thath says it all. And i shoot marbles to by the way, m&m;´s and popcorn beans in a homemade shell.

Select as Best AnswerUndo Best Answer

user
gotja (author)2008-01-17

3000 fps is insane thats about 3 times faster than sound... (speed of sound 1100 fps) but i think he ment like it was a precharged pnumatic gun (pvp i think) so it would be a multishot. you would charge 3000psi with a scuba tank

Select as Best AnswerUndo Best Answer

user
gotja (author)2008-01-17

3000 fps is insane thats about 3 times faster than sound... (speed of sound 1100 fps) but i think he ment like it was a precharged pnumatic gun (pvp i think) so it would be a multisho. you would charge 3000psi with a scuba tank

Select as Best AnswerUndo Best Answer

user
Easy Button (author)2007-08-29

Well, actually i'm 13 so you should learn how to spell.

Select as Best AnswerUndo Best Answer

user
Metal4God (author)Easy Button2007-08-29

you said you were 11 and then 12 an now 13 wow 2 years has gone by QUICK

Select as Best AnswerUndo Best Answer

user
Easy Button (author)Metal4God2007-08-29

Ya i feel like changing it i'm 11 actually. And Gotja is really getting on my mind.

Select as Best AnswerUndo Best Answer

user
gotja (author)Easy Button2007-08-30

so ur 11 then 12 and 13 2years in 2 days wow also get over it not every1s gonna listen to you not every1 wants to be grameracaly correct i personaly dont care unless its skool...

Select as Best AnswerUndo Best Answer

user
Easy Button (author)gotja2007-08-30

Well i care.Learn how to spell

Select as Best AnswerUndo Best Answer

user
Goodhart (author)Easy Button2007-08-31

What is wrong with using a TSR (runs in background) spell checker ? :-)

Select as Best AnswerUndo Best Answer

user
Goodhart (author)Easy Button2007-08-31

Oops, sorry, old term....means Terminate & Stay Resident (something that runs in background).

Select as Best AnswerUndo Best Answer

user
Metal4God (author)2007-08-31

noooooooooooo (im 13 in 12 days)

Select as Best AnswerUndo Best Answer

user
Easy Button (author)2007-08-29

Wow,that comment is so screwed up i can't even read it.

Select as Best AnswerUndo Best Answer

user
Metal4God (author)2007-08-29

i think 3000 can kill someone (to heck with paintball and co2 airsoft im going to Airguns)

Select as Best AnswerUndo Best Answer

user
Easy Button (author)2007-08-28

Dude, learn how to spell.

Select as Best AnswerUndo Best Answer

user
Enzo55 (author)Easy Button2007-08-28

i´m icelandic. MORON!!

Select as Best AnswerUndo Best Answer

user
Kiteman (author)2007-08-27

I'd be inclined to assume that the 3000 is a typo. Why not email them and check?

Select as Best AnswerUndo Best Answer

user
NachoMahma (author)Kiteman2007-08-27

. 3000 does sound rather high, but that is usually only the small volume contained in the internal storage tank, not the barrel pressure. (I'm talking about the manual air pump type. See http://www.airgundepot.com/397.html ) Not enough volume to maintain that pressure as the breech, chamber, and barrel are pressurized. The barrel pressure is not that high. I can't find anything that says what the pressure actually is in the barrel/storage chamber. :(
. If using CO2/N2/etc with a large volume available, I'd guess that 3000 is about an order of magnitude off. That sounds like barrel splittin' time. ;)

Select as Best AnswerUndo Best Answer

user
NachoMahma (author)NachoMahma2007-08-27

. Plus, in a Benjamin-type gun, the bolt acts as an orifice that will limit flow into the barrel.

Select as Best AnswerUndo Best Answer

user
Enzo55 (author)Kiteman2007-08-27

Ohh alright!! Thanks bro. You´ve made my day man.

Select as Best AnswerUndo Best Answer

user
trebuchet03 (author)2007-08-27

3,000 psi is no game.... Even 100psi can cause quite a bit of damage (energy stored depends on the volume of compressed gas).

It seems rather likely that it's 3,000 psi for a very short burst - wheras a typical home made cannon will use a full dump. So you could end up expending the same amount of energy.

Scuba tanks are charged up to 3,000 - 4500+ psi. Using multi stage compressors ;)

My air tank was this ABS pipe and i was wondering if you could get ABS pipe out of iron.
Nope, you can't get ABS pipe out of iron... Unless you happened to have an ABS pipe stored inside an iron pipe - then you could pull ABS out of iron in an even more literal sense :p

Select as Best AnswerUndo Best Answer

user
ll.13 (author)2007-08-27

300p.s.i. is around 24Bar, (rough estimate) my brothers spud-gun made out of 22mm. copper pipe @ .8metres (est.) reduced to 15mm. charged @ 200p.s.i. and a PVC "rocket" on the end can go about the length of a football pitch.

Select as Best AnswerUndo Best Answer

user
ll.13 (author)2007-08-27

Common sense, I have not had the grand opportunity to own, or even use a gas air rifle, but from what I have read about them (a lot) the higher range guns are able to shoot around 200+ pellets before another recharge -and that's without a drop in performance (pressure). The Logun Gladi8or can shoot 500 rounds in one charge, (and that's one nice gun). I believe your contraption only fires one round at high pressure, whereas the commercial products fire 500 rounds at a 10 times the pressure, and also they only have a projectile of .22" / .177".

Select as Best AnswerUndo Best Answer

user
Enzo55 (author)2007-08-25

and a nother thing.. Is it possible to get some blowback on home air guns. Then i mean increase blowback?

Select as Best AnswerUndo Best Answer

user
acer73 (author)Enzo552007-08-26

if you mean a kick, then no a 300psi gun will not give off enough force to push back to be noticeable.

Select as Best AnswerUndo Best Answer

user
LasVegas (author)Enzo552007-08-25

It's not "a other thing" or even "a nother thing." The word is "another"

Select as Best AnswerUndo Best Answer

user
NachoMahma (author)2007-08-25

. Why start a new thread for this? Move it to your other thread on psi/fps and I'll answer (not that I have much to tell ya).

Select as Best AnswerUndo Best Answer